import java.util.Scanner;

public class Main1 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt(),m = in.nextInt(),q = in.nextInt();
        int[][] array = new int[n+1][m+1];
        for(int i = 1; i <= n; i++) {
            for(int j = 1; j <= m; j++) {
                array[i][j] = in.nextInt();
            }
        }

        long[][] dp = new long[n+1][m+1];
        for(int i = 1; i <= n; i++) {
            for(int j = 1; j <= m; j++) {
                dp[i][j] = dp[i-1][j] + dp[i][j-1] + array[i][j] - dp[i-1][j-1];
            }
        }

        while(q > 0) {
            int x1 = in.nextInt(),y1 = in.nextInt(),x2 = in.nextInt(),y2 = in.nextInt();
            System.out.println(dp[x2][y2]-dp[x1-1][y2]-dp[x2][y1-1]+dp[x1-1][y1-1]);
            q--;
        }

    }
}
